Mat cutter



FIG. 1 is a view in front elevation showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a view in rear elevation thereof;

FIG. 4 is a view in side elevation; and

FIG. 5 is a view in side elevation from the opposite side of the matcutter.

The ornamental design for a mat cutter, as shown.